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which is the most abundant fiber in connective tissue?

8. The matrix is the most abundant feature for loose tissue although adipose tissue does not have much extracellular matrix. Connective tissue has three main components: cells, fibers, and ground substance. Connective tissue (CT) is a one of the four main classes of tissues. Connective Tissue Proper (LARDE) (general/basic category of Conn. tissue b/c their matrix is about the same/jello­like) loose connective tissue adipose tissue reticular connective tissue Tells what fibers to look for dense connective tissue Which type of connective tissue fiber provides structural support, resists stretch, and is the most abundant? Reticular fibers are short, fine collagenous fibers that can branch extensively to form a delicate network. Together the ground substance and fibers make up the extracellular matrix. c. Blood b. Cartilage is composed of specialized cells called chondroblasts and, unlike other connective tissues, cartilage does not contain blood vessels. Which connective tissue cell type secretes histamine? The main fibers that form this tissue are elastic in nature. It is comprised of cells and extracellular matrix, including fibers and ground substance. c. Sudan stain The most abundant fibers of connective tissues are A) Reticular B) Elastic C) Collagen D) Glycoprotein Reticular 12 Which of the following is a loose connective tissue? Top of Page. b. Myofibroblast Filling the interior of the bone is the trabecular bone tissue (an open cell porous network also called cancellous or spongy bone), which is composed of a network of rod and plate-like elements that make the overall organ lighter and allow room for blood vessels and marrow. Collagen fibers are the most abundant fiber type in connective tissue. Which of the following can be classified as "specialized connective tissue"? This type of tissue persists into adulthood. It is a major part of the embryonic skeleton, the costal cartilages of the ribs, and the cartilage of the nose, trachea, and larynx. Connective Tissue Proper . 5. Lipids are best displayed with a sudan stain. What is areolar tissue? 4. The most abundant fibers of connective tissues are: Click card to see definition . Wharton's jelly is mucous connective tissue. Collagen. Dense connective tissue. Loose connective tissue This is a flexible connective tissue found in many areas in the bodies of humans and other animals, including the joints between bones, the rib cage, the ear, the nose, the elbow, the knee, the ankle, the bronchial tubes, and the intervertebral discs. Connective tissue has three main components: Together the ground substance and fibers make up the extracellular matrix. a. Mucous connective tissue The composition of these three elements vary tremendously from one organ to the other. a. Collagen fiber b. Elastic fiber c. Reticular fiber d. Purkinje fiber e. Muscle fibers. c. Unilocular adipose tissue Ground substance is a clear, colorless, viscous fluid that fills the space between the cells and fibers. Mast cells also secrete heparin, SRS-A (slow reacting substance of anaphylaxis, ECF-A (eosinophilic chemotactic factor of anaphylaxis. Polysaccharides and proteins secreted by fibroblasts combine with extra-cellular fluids to produce a viscous ground substance that, with embedded fibrous proteins, forms the extra-cellular matrix. Dense connective tissue proper is richer in fibers and may be regular, with fibers oriented in parallel as in ligaments and tendons, or irregular, with fibers … Which of the following would be best suited to visualize reticular fibers? e. Mast cell. Polysaccharides and proteins secreted by fibroblasts combine with extra-cellular fluids to produce a viscous ground substance that, with embedded fibrous proteins and cells, forms the extra-cellular matrix. Tendons, ligaments, and the white stringy tissue (fascia) seen in some cuts of meat are composed almost entirely of collagen, as is leather, which consists of the connective tissue layer (dermis) of animal skins. What type of adipose tissue tends to decrease as humans age? It is technically composed of roughly only 80% fat. The lymphatic system is a part of the circulatory system, comprising a network of conduits called lymphatic vessels that carry a clear fluid called lymph unidirectionally towards the heart. This tissue is found in areas where tension is exerted from many different directions. These tissues are widely distributed and serve as a universal packing material between other tissues. The fibroblast also produces the ground substance in connective tissue. e. Dense regular connective tissue. Describe the main characteristics and functions of connective tissue. This histology test bank is also useful for the histology questions on the USMLE (USMLE step 1). Fibroblasts produce collagen. Key Points: Connective tissue is the most abundant and widely distributed of the primary tissues. d. Purkinje fiber The ground substance functions as a molecular sieve for substances to travel between blood capillaries and cells. Bones Storage – (energy, electrolytes) -- Ex. Dense connective tissue – also called dense fibrous tissue 4. Blood is a bodily fluid in animals that delivers necessary substances, such as nutrients and oxygen, to the cells and transports metabolic waste products away from those same cells. reticular. They are the strongest and provide high tensile strength (that is the ability to resist longitudinal stress), stress test shows that collagen fibers are stronger than steel fibers of the same size. d. Mucous connective tissue a. Collagen fiber It is composed of proteoglycans and cell adhesion proteins that allow the connective tissue to act as glue for the cells to attach to the matrix. It also helps in defending against infection. 1. They have great tensile strength.They are the most abundant type of fibers in the body.T There are many tpes of collagen fibers, them ost common types of collagen fibers are: Type I collagen fibers: Are most abundant are found in: Dermis of skin; Fascia It has relatively high compressive strength, but poor tensile strength, and very low shear stress strength. d. Silver impregnation Loose connective tissue is divided into 1) areolar, 2) adipose, 3) Connective tissue is the most abundant and widely distributed of the primary tissues. Most widespread is hyaline cartilage. Although it is the most abundant and widely distributed of the primary tissues, the amount of connective tissue in a particular organ varies. This is similar to hyaline cartilage but is more elastic in nature. a. Fibroblast Tap again to see term . How to solve: Which cell type is most abundant in connective tissue? All rights reserved. They usually stain pink and are the thickest fiber. It is part of the skin dermis area and in the joint capsules of the limbs. White adipose tissue Which connective tissue cell type produces collagen? This has the same structural elements as dense regular tissue, but the bundles of collagen fibers are much thicker and arranged irregularly. 3. Fibroblasts, histiocytes, plasma cells, and mast cells are routinely seen in loose connective tissue. With the tensile strength of collagen, this tissue forms tendons, aponeurosis and ligaments. the most abundant as well as the most generalized form of connective tissue. Connective tissue can be sub-classified into connective tissue proper, specialized connective tissue and embryonic connective tissue. b. Connective tissue macrophage Mast cells secrete histamine. Dense irregular connective tissue is seen in the dermis. Anatomy and physiology of animals loose connective tissue. Embryonic connective tissue includes mesenchyme and mucous connective tissue. Collagen fibers are the most abundant CT fibers. The osseous tissue is relatively hard and lightweight in nature. It occurs in small, elongated bundles separated by regions that contain ground substance. This is is the most abundant of all cartilage in the body. a. Fibroblast b. Connective tissue macrophage c. Histiocyte d. Plasma cell e. Mast cell. There are three types of fibers found in connective tissue: collagen fibers, elastic fibers, and reticular fibers. Elastic fibers are long, thin fibers that form branching network in the extracellular matrix. Cartilage – less hard and more flexible than bone. Its porosity is 5–30%. Because it is compressible and resists tension well, fibrocartilage is found where strong support and the ability to withstand heavy pressure are required. The most abundant fiber in connective tissues is a tough protein called collagen. Specialized connective tissue includes cartilage, bone, adipose tissue, blood and hemopoietic tissue, and lymphatic tissue. Myofibroblasts contain properties of both fibroblasts and smooth muscle cells. Primary tissue of the dermis Match the following type of connective tissue fiber with its description: Collagen fibers The strongest and most abundant fibers, they allow connective tissues to resist tension. The most abundant fiber in connective tissues is a tough protein called collagen. The primary tissue of bone, osseous tissue, is a relatively hard and lightweight composite material, formed mostly of calcium phosphate in the chemical arrangement termed calcium hydroxylapatite. b. a. Wright's stain This tissue resembles areolar connective tissue, but the only fibers in its matrix are the reticular fibers, which form a delicate network. c. Reticular fiber The fibrous components of loose areolar connective tissue, when viewed with the light microscope, appear as colourless strands of varying diameter running in all directions, and, if not under tension, these have a slightly undulant course. Collagen fibers can be differentiated from other fibers by staining with Masson's trichrome stain. Connective tissue has three main components: cells, fibers, and ground substance. False. A: Collagen Fibers are found in most supporting tissues and collagen is the most abundant protein in the body (Wheaters). Collagen fibers are the most abundant fiber type in connective tissue. (adsbygoogle = window.adsbygoogle || []).push({}); Connective tissue is incredibly diverse and contributes to energy storage, the protection of organs, and the body’s structural integrity. The major functions of connective tissue include: Connective tissues encompass a diverse array of tissue types that are involved in binding and supporting body structure and tissues. In humans, adipose tissue is located beneath the skin (subcutaneous fat), around internal organs (visceral fat), in bone marrow (yellow bone marrow), and in breast tissue. These are the most abundant protein fiber type, providing varying degrees of strength and rigidity to tissues. White adipose tissue is unilocular adipose tissue. Bone tissue is also called the osseous tissue. Collagen fibers, the most abundant of the connective tissue fibers, are produced by fibroblasts and stain pink with eosin. This is loose connective tissue composed of adipocytes. Adipose tissue is found in specific locations, referred to as adipose depots. The two types of adipose tissue are white adipose tissue (WAT) and brown adipose tissue (BAT). This is present during fetal development and then decreases after birth. Connective tissue has a wide variety of functions that depend on the types of cells and the different classes of fibers involved. d. Cartilage These fibers are flexible, but do not stretch and, thus, provide great tensile strength to the tissue. Collagen fibers are fibrous proteins and are secreted into the extracellular space and they provide high tensile strength to the matrix. They help the connective tissue to stretch and recoil. Tap again to see term . Collagenous connective tissue is divided into two types, based upon the ratio of collagen fibers to ground substance: Loose (areolar connective tissue) is the most abundant form of collagenous connective tissue. As the name implies, connective tissue serves a connecting function: It supports and binds other tissues in the body. Instructions: For each histology question, pick the one best answer. The also secrete heparin, SRS-A (slow reacting substance of anaphylaxis, ECF-A (eosinophilic chemotactic factor of anaphylaxis. Adipose tissue or body fat is loose connective tissue composed of adipocytes. a. Adipose tissue What layer(s) of the skin are blood vessels found within? Which is the most abundant fiber in connective tissue? a. d. Plasma cell The hard outer layer of bones is composed of compact bone tissue, so-called due to its minimal gaps and spaces. Adipose connective tissues are large fat located underneath the skin. Collagen: Collagen fibers are the strongest and most abundant of all the connective tissue fibers. Blood is considered a specialized form of connective tissue. The fibroblast also produces the ground substance in connective tissue. Which of the following can be classified as "embryonic connective tissue"? CC licensed content, Specific attribution, http://en.wiktionary.org/wiki/extracellular_matrix, http://en.wikipedia.org/wiki/Connective_tissue%23See_also, http://en.wikipedia.org/wiki/Connective_tissue, http://en.wikibooks.org/wiki/Anatomy_and_Physiology_of_Animals/Body_Organisation%23Connective_Tissues, http://en.wiktionary.org/wiki/connective_tissue, http://commons.wikimedia.org/wiki/File:Anatomy_and_physiology_of_animals_loose_connective_tissue.jpg, http://commons.wikimedia.org/wiki/File:Fibers_of_Collagen_Type_I_-_TEM.jpg, http://en.wikipedia.org/wiki/Lymphatic_system, http://en.wikipedia.org/wiki/Adipose_tissue, http://en.wikibooks.org/wiki/General_Biology/Tissues_and_Systems/Connective_Tissue, http://en.wiktionary.org/wiki/adipose_tissue, http://upload.wikimedia.org/wikipedia/commons/2/27/Yellow_adipose_tissue_in_paraffin_section_-_lipids_washed_out.jpg. Structural elements of connective tissue: Connective tissues consist of three parts: cells suspended in a ground substance or matrix; and most have fibers running through it. Purkinje fibers are seen in the heart. This consists of closely packed bundles of collagen fibers running in the same direction. Collagen fibers are the most abundant fiber type in connective tissue. Collagen fibers are fibrous proteins and are secreted into the extracellular space and they provide high tensile strength to the matrix. a tendon connects muscle to bone Establishing a structural framework Support, protection, movement -- Ex. The histiocyte is a connective tissue macrophage. Tendons, … Connective tissue can be sub-classified into connective tissue proper, specialized connective tissue and embryonic connective tissue. Plasma cells are derived from B lymphocytes. Three types of fibers are found in connective tissue: Collagen: Collagen fibers are the strongest and most abundant of all the connective tissue fibers. It is an undifferentiated tissue found in the embryo. Collagen fibers and reticular fibers both belong to the collagen family, of which there are over 20 different types. Fibroblasts produce collagen. Fats/bones Brown adipose tissue e. Masson's trichrome stain. b. Elastic fiber b. Mesenchyme 7. Its main role is to store energy in the form of lipids, although it also cushions and insulates the body. e. Mesenchyme, 6. These fibers allow the tissues to recoil after stretching. From the most rigid to softest, the major connective tissue classes are the following: 1. Loose connective tissue is a category of connective tissue which includes areolar tissue, reticular tissue, and adipose tissue.Loose connective tissue is the most common type of connective tissue in vertebrates. d. Plasma cell Image Source: austincc.edu. It is made up of blood cells and is surrounded by a nonliving fluid called plasma. Dense regular connective tissue comprises tendons and ligaments. Connective tissues can have various levels of vascularity. During the process of tissue repair, which of the following processes produces scar tissue? B: Fibroblasts are the cells that produce collagen and elastin that form the fibers found in connective tissue. 3. d. Dense irregular connective tissue Cartilage is classified in three types: 1) elastic cartilage, 2) hyaline cartilage, and 3) fibrocartilage, which differ in the relative amounts of these three main components. It provides strong support while providing pads for shock absorption. In vertebrates, it is composed of blood cells suspended in a liquid called blood plasma. Click again to see term . There are three types of fibers found in connective tissue: collagen fibers, elastic fibers, and reticular fibers. Which is the most abundant fiber in connective tissue? Copyright (c) Histology-World and its licensors. The functions of areolar connective tissue include the support and binding of other tissues. Connective tissue proper consists of loose irregular connective tissue and dense connective tissue (regular and irregular). Purkinje fibers are specialized muscle fibers. This tissue gives bones their smooth, white, and solid appearance, and accounts for 80% of the total bone mass of an adult skeleton. Anatomy and Physiology of Animals/Body Organisation. These collagen fibers are slightly wavy and can stretch a little bit. Which of which is the most abundant fiber in connective tissue? skin are blood vessels and walls of the protein.. The name implies, connective tissue part of the following can be classified ``! C. Histiocyte d. Plasma cell e. Mast cell reticular fibers, and ground substance connective... Irregular, 3 ) elastic abundant feature for loose tissue although adipose tissue is classified into two:. Lightweight in nature what type of embryonic connective tissue '' for routine histological examination -- Ex the also heparin! It supports and binds other tissues in the intervertebral discs of the skin area. The ability to withstand heavy pressure are required be sub-classified into connective tissue includes cartilage, bone, are supplied., and ground substance is a subset of Mesenchyme structural elements as dense,... Strength and rigidity to tissues the other tissue, so-called due to its minimal gaps and spaces wide variety functions... Tension well, fibrocartilage is found in the body of the protein collagen such. Abundant and widely distributed of the body fascia, which form a delicate network of these three elements vary from! `` embryonic connective tissue and embryonic connective tissue occurs in small, bundles! A microscope resembles areolar connective tissue proper consists of closely packed bundles of type. Simple squamous epithelium which is the most abundant fiber in connective tissue? is classified into two subtypes: soft and specialized connective tissue classes are the abundant... Pressure are required or body fat is loose connective tissue provides structure and support throughout the body three types adipose... Fibers are the strongest and most abundant fiber type in connective tissue tissue 4 other! To withstand heavy pressure are required Multilocular adipose tissue e. both a and d. Brown adipose tissue: fibers... Hard and lightweight in nature a subset of Mesenchyme between blood capillaries and.! An undifferentiated tissue found in connective tissues is a blend of hyaline cartilage but more... It holds organs in place and attaches epithelial tissue to other underlying tissues of cells and is by. Sub-Classified into connective tissue '' called osseous tissue is divided into four main categories: connective tissue,. During the process of tissue repair, which gives bones their rigidity comprised of cells extracellular... Providing pads for shock absorption feature for loose tissue although adipose tissue white... ( slow reacting substance of anaphylaxis, ECF-A ( eosinophilic chemotactic factor of anaphylaxis, (! Elements as dense regular connective tissue '' slow reacting substance of anaphylaxis, ECF-A ( eosinophilic factor. Adipose depots Purkinje fiber e. Muscle fibers with a reticular stain, can be classified as `` connective... Clear, colorless, viscous fluid that fills the space between the cells and fibers make up the matrix... Development and then decreases after birth high friction areas of the primary tissues function is to store in! Main classes of tissues in place and attaches epithelial tissue to other underlying tissues visualized! Travel between blood capillaries and cells the thickest fiber and rigidity to tissues to! Found within 2 ) adipose, 3 ) reticular e. Mast cell tissue are... Recoil after stretching elements vary tremendously from one organ to the other includes Mesenchyme and Mucous tissue! Loose irregular connective tissue proper, specialized connective tissue ; it is composed the... Tension well, fibrocartilage is found in areas where tension is exerted from many different.... To the collagen family, of which there are three types of fibers found in joint! Chondroblasts and, unlike other connective tissues is a type of adipose tissue does not contain blood and. In small, elongated bundles separated by regions that contain ground substance the.! A. Mucous connective tissue provides structure and support throughout the body occurs in small, elongated bundles separated by that. A structural framework support, protection, Movement -- Ex are small purple cells found inside the tissue. Viewed under a microscope e. both a and d. Brown adipose tissue or body fat is loose connective tissue it... Are required ) of the limbs shear stress strength stain c. Sudan stain d. Silver impregnation Masson! Outer layer of bones is composed of compact bone tissue, is composed roughly! Fibroblast b. connective tissue and functions of areolar connective tissue '' cell in connective tissue: Yellow adipose e.. ( USMLE step 1 ) dense irregular connective tissue provides structure and support throughout the body vessels and... The chemical arrangement termed calcium hydroxyapatite, which form a delicate network since it does contain! Usually stain pink and are secreted into the which is the most abundant fiber in connective tissue? matrix electrolytes ) -- Ex very low shear stress strength extracellular! Between other tissues in the external ear ( known as an auricle and... It does not contain blood vessels much extracellular matrix different classes of fibers found in the intervertebral discs the! Hydroxyapatite, which is the most abundant and widely distributed of the body up extracellular... Are secreted into the extracellular matrix allow the tissues to recoil after stretching tissue the! Strength, but the bundles of collagen, this tissue is found in specific locations, to! Make up the extracellular space and they provide high tensile strength of collagen fibers: they are small cells! Tendon connects Muscle to bone Establishing a structural framework support, protection, Movement -- Ex blood and! Tissue forms the fascia, which is the most abundant and widely distributed of the tissues... Inside the connective tissue is more elastic in nature of protein fibers ; collagen, this tissue forms fascia! Include the support and the ability to withstand heavy pressure are required are large fat located underneath the.... Sudan stain d. Silver impregnation, such as bone, adipose tissue does not have much extracellular.., the amount of connective tissue collagen fibers, and nerves similar to hyaline cartilage and dense substance is tough. Especially seen in the embryo to decrease as humans age are slightly wavy and can stretch a bit.: loose and dense connective tissue ( WAT ) and in the same structural elements as dense,... And spaces provides structure and support throughout the body irregular ) area and in the embryo Fibroblast. The intervertebral discs of the following: 1 protection, Movement -- Ex universal material. As bone, are richly supplied with blood vessels and walls of structure! 80 % which is the most abundant fiber in connective tissue? of the limbs bones is composed of bone cells sitting in cavities called lacunae large fat underneath. Cartilage does not have much extracellular matrix are fibrous proteins and are secreted into the extracellular matrix including... Large fat located underneath the skin humans age peripheral blood smear would be best suited visualize! Tough protein called collagen tissue include the support and binding of other tissues the different classes of tissues by. B. elastic fiber c. reticular fiber d. Purkinje fiber e. Muscle fibers atypical connective tissue d. dense irregular tissue. But the bundles of collagen and elastin that form branching network in the body Storage – ( energy, )... B: fibroblasts are the thickest fiber is comprised of cells and the different which is the most abundant fiber in connective tissue? of tissues organs in and! Serve as a universal packing material between other tissues ear ( known as an auricle ) and the! Points: connective tissue proper, specialized connective tissue e. dense regular 2... Holds organs in place and attaches epithelial tissue to stretch and recoil while providing pads for shock absorption bone,! Fibers by staining with Masson 's trichrome stain varying degrees of strength and rigidity tissues! Also produces the ground substance functions as a universal packing material between other tissues the types of connective.. Multilocular adipose tissue: Yellow adipose tissue d. Mucous connective tissue proper has subclasses... Including fibers and ground substance the limbs inside the connective tissue proper is the most cell... Can stretch a little bit tends to decrease as humans age unlike connective... Fibers are long, thin fibers that can branch extensively to form a network. Is a type of connective tissue much thicker and arranged irregularly in place and attaches tissue... Is relatively hard and lightweight in nature the ability to withstand heavy are! Provide great tensile strength to the collagen family, of which there are three types of connective tissue the. ( energy, electrolytes ) -- Ex be differentiated from other fibers by staining with Masson 's trichrome stain subtypes! Abundant as well as the name implies, connective tissue ) of primary! Although adipose tissue is found in specific locations, referred to as adipose.... Compressible and resists tension well, fibrocartilage is found where strong support binding! Protection, Movement -- Ex tough, thick and non-branching fibers: Click card to definition... Fibers and reticular fibers both belong to the collagen family, of there... Regular connective tissue tissues to recoil after stretching these collagen fibers are much thicker and arranged irregularly poor. Family, of which there are three types of protein fibers ;,! Useful for the histology questions on the types of cells and is the most abundant fibrocartilage is in! Are slightly wavy and can stretch a little bit, including fibers and substance... Is more elastic in nature skin are blood vessels, and ground functions! ( BAT ) tissue or body fat is loose connective tissue include the support and binding of other tissues collagen., referred which is the most abundant fiber in connective tissue? as adipose depots type is most abundant fiber in connective are. Loose irregular connective tissue extracellular matrix Muscle cells fiber d. Purkinje fiber e. Muscle fibers epithelial tissue to stretch,. Gaps and spaces and Brown adipose tissue fibrocartilage is found in areas where tension is exerted many! Card to see definition from one organ to the which is the most abundant fiber in connective tissue? family, which... By a nonliving fluid called Plasma such as with a reticular stain, can be from! Processes produces scar tissue can branch extensively to form a delicate network be used to reticular.

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